PyQt5 QCalendarWidget – Checking if its has focus or not
In this article we will see how we can check if the QCalendarWidget has focus or not. Focus is basically the input focus, by default it don’t have focus but when app get executed mouse clicked on it, it get the focus but when mouse click on other widget its focus will get shifted.
In order to do this we will use hasFocus method with the QCalendarWidget object.
Syntax : calendar.hasFocus()
Argument : It takes no argument
Return : It return bool
Implementation Steps :
1. Create a main window
2. Create a Calendar widget
3. Create a line edit widget at different position
4. Create a label to show the focus status
5. Create QTimer object that call the action after every 200 milliseconds
6. Inside the timer action check for the calendar focus
Below is the implementation
Python3
# importing libraries from PyQt5.QtWidgets import * from PyQt5 import QtCore, QtGui from PyQt5.QtGui import * from PyQt5.QtCore import * import sys class Window(QMainWindow): def __init__( self ): super ().__init__() # setting title self .setWindowTitle( "Python " ) # setting geometry self .setGeometry( 100 , 100 , 650 , 400 ) # calling method self .UiComponents() # showing all the widgets self .show() # method for components def UiComponents( self ): # creating a QCalendarWidget object self .calendar = QCalendarWidget( self ) # setting geometry to the calendar self .calendar.setGeometry( 50 , 10 , 400 , 250 ) # setting cursor self .calendar.setCursor(Qt.PointingHandCursor) # creating label to show the properties self .label = QLabel( self ) # setting geometry to the label self .label.setGeometry( 100 , 280 , 250 , 60 ) # making label multi line self .label.setWordWrap( True ) # checking edit focus value = self .calendar.hasFocus() # setting text to the label self .label.setText( "Has Focus : " + str (value)) # creating a timer object timer = QTimer( self ) timer.timeout.connect( self .show_time) timer.start( 200 ) # creating a line edit line = QLineEdit( self ) # setting geometry to the line edit line.setGeometry( 500 , 100 , 100 , 40 ) # method called by the timer def show_time( self ): # checking focus value = str ( self .calendar.hasFocus()) # setting text through label self .label.setText( "Has Focus : " + value) # create pyqt5 app App = QApplication(sys.argv) # create the instance of our Window window = Window() # start the app sys.exit(App. exec ()) |
Output :